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  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<body>
  <script>
    //定义一个存储了若干学生信息的数组

    let students = [

      { name: '小明', age: 18, gender: '男', hometown: '河北省' },
      { name: '小红', age: 19, gender: '女', hometown: '河南省' },
      { name: '小刚', age: 17, gender: '男', hometown: '山西省' },
      { name: '小丽', age: 18, gender: '女', hometown: '山东省' }
    ]

    for (let i = 0; i < students.length; i++) {
      for (let k in students[i]) {
        console.log(k);
        console.log(students[i][k]);
      }
      // console.log(students[i].name);
      // console.log(students[i].age);
      // console.log(students[i].gender);
      // console.log(students[i].hometown);
    }
  </script>
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